I am kinda seeing the same thing. I bought my JD 3039R back when Covid was starting during the summer of 2020. I have noticed recently that the new ones are substantially higher. Prices on used ones similar to mine are bringing more than I paid for mine new.
SCAG has a '61' inch Turf Tiger with a Kubota diesel in it. I have a '48' Tiger Cub gas model that has treated me well for the last 19 years. Love my JD 3r tractor but my SCAG ztr has treated me well.
Guess some JD dealers differ. My local JD dealer has a decated separate sales staff for compact tractors and lawn equipment. Also separate service technicians dedicated to the compacts and lawn equipment.